>> krista hall: ten. >> how old is your son? >> krista hall: ten. oh, god! u were the first detective at the scene after the murder, is that correct? >> greg rowe: that's correct. >> stahl: detective greg rowe saw jeff hall dead on the couch. he says little joseph, who was found hiding upstairs under his covers, described calmly how he had gotten the family's rossi .357 magnum from his dad's closet... >> rowe: ...went downstairs and shot his dad. he described how he used his forefingers to cock the gun, and used two fingers to pull the trigger, and he pointed it at his ear. >> stahl: this was not a case of a kid thinking it was a toy and letting it go off by accident? >> rowe: there's no evidence this was anything but intentional. >> stahl: prosecutor michael soccio. >> michael soccio: when he was taken into juvenile hall, he's so little, they didn't have shoes to fit him. so they had to go out and buy him a little pair of tennis shoes. and he asked if he'd be able to keep the shoes when he left, which showed an absolute lack of understanding of what was goin